Digital Commons Network^™

Habitat Segregation Between Brown Bears And Gray Wolves In A Human-Dominated Landscape, Cyril Milleret, Andrés Ordiz, Guillaume Chapron, Harry Peter Andreassen, Jonas Kindberg, Johan Månsson, Aimee Tallian, Petter Wabakken, Camilla Wikenros, Barbara Zimmermann, Jon E. Swenson, Håkan Sand

Ecology Center Publications

Identifying how sympatric species belonging to the same guild coexist is a major question of community ecology and conservation. Habitat segregation between two species might help reduce the effects of interspecific competition and apex predators are of special interest in this context, because their interactions can have consequences for lower trophic levels. However, habitat segregation between sympatric large carnivores has seldom been studied. Based on monitoring of 53 brown bears (Ursus arctos) and seven sympatric adult gray wolves (Canis lupus) equipped with GPS collars in Sweden, we analyzed the degree of interspecific segregation in habitat selection …

Usu-Csu Na Lidar Data, Tao Yuan

Browse all Datasets

The naturally existing mesospheric Na layer, overlapping the upper mesosphere and lower thermosphere, provides an excellent tracer for lidar remote sensing. The Na Doppler lidar technique is designed to measure neutral temperature and wind profiles in the mesopause region (~ 80-110 km) by observing the thermal broadening and Doppler shift of the atomic Na fluorescence spectrum. Relocated from Colorado State University (CSU), the Na lidar at Utah State University (USU) has been operating since the summer of 2010, for roughly 1000 hours per year. Enabled by a pair of Faraday filters, it has a unique daytime observation capability to study …

Wild Bees Of Grand Staircase-Escalante National Monument: Richness, Abundance, And Spatio-Temporal Beta-Diversity, Olivia Messinger Carril, Terry Griswold, James Haefner, Joseph S. Wilson

All PIRU Publications

Interest in bees has grown dramatically in recent years in light of several studies that have reported widespread declines in bees and other pollinators. Investigating declines in wild bees can be difficult, however, due to the lack of faunal surveys that provide baseline data of bee richness and diversity. Protected lands such as national monuments and national parks can provide unique opportunities to learn about and monitor bee populations dynamics in a natural setting because the opportunity for large-scale changes to the landscape are reduced compared to unprotected lands. Here we report on a 4-year study of bees in Grand …

Rectifying Garbage-In Equals Garbage-Out Using A Secondary Electron Yield Materials Database, Phil Lundgreen, Jr Dennison

Presentations

No abstract provided.

Developmental Parameters Of A Southern Mountain Pine Beetle (Coleoptera: Curculionidae) Population Reveal Potential Source Of Latitudinal Differences In Generation Time, Anne E. Mcmanis, James A. Powell, Barbara J. Bentz

Mathematics and Statistics Faculty Publications

Mountain pine beetle (Dendroctonus ponderosae, Hopkins) is a major disturbance agent in pine ecosystems of western North America. Adaptation to local climates has resulted in primarily univoltine generation time across a thermally diverse latitudinal gradient. We hypothesized that voltinism patterns have been shaped by selection for slower developmental rates in southern populations inhabiting warmer climates. To investigate traits responsible for latitudinal differences we measured lifestage-specific development of southern mountain pine beetle eggs, larvae and pupae across a range of temperatures. Developmental rate curves were fit using maximum posterior likelihood estimation with a Bayesian prior to improve fit stability. …

Signing Exact English; A Simultaneously Spoken And Signed Communication Option In Deaf Education, Kabian Rendel, Jill Bargones, Britnee Blake, Barbara Luetke, Deborah S. Stryker

Journal of Early Hearing Detection and Intervention

Current reviews of the literature continue to evidence that even with current assistive listening technology, many children who are deaf or hard-of-hearing (D/HH) persist in demonstrating English language and literacy gaps compared to hearing peers (e.g., C. Mayer 2016; C. Mayer, & Trezek, 2018). For example, Geers, Tobey, Moog, and Brenner (2008) reported that “only about half” (p. 262) of children using cochlear implants (CIs) (and no sign to support their speech production) achieved age-appropriate abilities by third grade. Given the continually-reported variability of results (e.g., Harris, 2016; C. Mayer, & Trezek, 2018), an alternative is warranted. Signing Exact English …

Predictors Of Early Numeracy: Applied Measures In Two Childcare Contexts, Belinda Blevins-Knabe, Jacob Esplin, Ann Berhout Austin, Shawnee M. Hendershot

Human Development and Family Studies Faculty Publications

The purpose of the current research was: (1) To assess differences in early numeracy, phonological awareness, receptive language, executive functioning, and working memory for children in two childcare settings (family and center); (2) To determine whether applied measures of phonological awareness and executive functioning could serve as predictors of numeracy performance. Children (N = 89) ranging in age from 39 to 75 months were recruited from state-licensed childcare centers and family childcare homes. Teacher ratings of executive functioning were significantly related to early number skills, phonological awareness, and receptive language, but none of the parent ratings were significantly related to …

Sediment Dynamics In The Bear River-Mud Lake-Bear Lake System, Patrick Belmont, Mitchell Donovan, Janice Brahney, Lindsay Capito, Zach Burgert

Watershed Sciences Faculty Publications

The overarching goal of this project was to compile and analyze a variety of existing datasets, and generate several new datasets, to advance our understanding of how the Bear River Mud Lake-Bear Lake system functions, how it has, or is expected to change, identify which components are degraded or vulnerable to degradation, and determine if/where critical data and/or knowledge gaps exist. We conducted a series of analyses to evaluate changes in hydrology and suspended sediment, collected sediment cores from nine locations in Mud Lake to evaluate how sedimentation rates, sediment sources and water quality have changed over time, and utilized …

Kinetic Characterization Of The Shigella Type Three Secretion System Atpase Spa47 Using Α-32p Atp, Heather B. Case, Nicholas E. Dickenson

Chemistry and Biochemistry Faculty Publications

ATPases represent a diverse class of enzymes that utilize ATP hydrolysis to support critical biological functions such as driving ion pumps, providing mechanical work, unfolding/folding proteins, and supporting otherwise thermodynamically unfavorable chemical reactions. We have recently shown that the Shigella protein Spa47 is an ATPase that supports protein secretion through its specialized type three secretion apparatus (T3SA), supporting infection of human host cells. Characterizing ATPases, such as Spa47, requires a means to accurately determine enzyme activity (ATP hydrolysis) as a function of time, reaction conditions, and potential cofactors, regulators, inhibitors, etc. Here, we describe a detailed protocol for characterizing …

An Introduction To Quantile-Quantile Plots For The Experimental Physicist, Allen Andersen, Jr Dennison

Journal Articles

No abstract provided.

Carving Out A Space For Female Achievement In Early Modern England: The Life Of Lady Elizabeth Russell, Frankie Urrutia-Smith

Undergraduate Research and Creative Opportunities (URCO) Grant Program

Lady Elizabeth Cooke Hoby Russell was an early modern English noblewoman who was able to be influential in government policy and social movements in a way that many other women of the time were not. Elizabeth was able to wield more influence in her community than most women of her time for two main reasons: she was well- educated and she had powerful family connection with the elite of English society. With these advantages at her disposal, Elizabeth was able to follow the example of her namesake the Queen to effect change in the political arena, the religious arena, and …

Curriculum Subcommittee Agenda, November 1, 2018, Utah State University

Educational Policies Committee

Program Proposals

• Adding School Based and Community Based Emphases in Family and Consumer Sciences Education
• Offering an Emphasis in Farm and Ranch Operations
• Changing the name from Agricultural Communication and Journalism to Agricultural Communication
• Offering an Elementary Mathematics Specialist Graduate Certificate
• Establishing an I-System Institute for Transdisciplinary Studies
• Offering an Associate of Applied Science degree in Surgical Technology

Semester Course Approval Reviews

Educational Policies Committee Minutes, November 1, 2018, Utah State University

Educational Policies Committee

• Curriculum Subcommittee report
• Academic Standards Subcommittee report
• General Education Subcommittee report

Curriculum Subcommittee Minutes, November 1, 2018, Utah State University

Educational Policies Committee

Program Proposals

• Adding School Based and Community Based Emphases in Family and Consumer Sciences Education
• Offering an Emphasis in Farm and Ranch Operations
• Changing the name from Agricultural Communication and Journalism to Agricultural Communication
• Offering an Elementary Mathematics Specialist Graduate Certificate
• Establishing an I-System Institute for Transdisciplinary Studies
• Offering an Associate of Applied Science degree in Surgical Technology

Semester Course Approval Reviews

Educational Policies Committee Agenda, November 1, 2018, Utah State University

Educational Policies Committee

• Curriculum Subcommittee
• Academic Standards Subcommittee
• General Education Subcommittee

Uwrl Opens Funded Research Opportunities, Utah Water Research Laboratory

News

The Utah Water Research Laboratory (UWRL) is looking for enthusiastic and self-motivated applicants for a variety of funded water resources research opportunities. As a multidisciplinary laboratory in the College of Engineering, the UWRL attracts applicants from a variety of STEM backgrounds and is engaged in a wide range of challenging national and international research efforts. Current research opportunities are in the following areas:

Interfacing Nickel Nitride And Nickel Boosts Both Electrocatalytic Hydrogen Evolution And Oxidation Reactions, Fuzhan Song, Wei Li, Jiaqi Yang, Guanqun Han, Peilin Liao, Yujie Sun

Chemistry and Biochemistry Faculty Publications

Electrocatalysts of the hydrogen evolution and oxidation reactions (HER and HOR) are of critical importance for the realization of future hydrogen economy. In order to make electrocatalysts economically competitive for large-scale applications, increasing attention has been devoted to developing noble metal-free HER and HOR electrocatalysts especially for alkaline electrolytes due to the promise of emerging hydroxide exchange membrane fuel cells. Herein, we report that interface engineering of Ni₃N and Ni results in a unique Ni₃N/Ni electrocatalyst which exhibits exceptional HER/HOR activities in aqueous electrolytes. A systematic electrochemical study was carried out to investigate the superior hydrogen …

Dependence Of Nmr Chemical Shifts Upon Ch Bond Lengths Of A Methyl Group Involved In A Tetrel Bond, Steve Scheiner

Chemistry and Biochemistry Faculty Publications

Four different Lewis acids that might participate in a tetrel bond with a nucleophile (SEt₂Me⁺, NMe₄⁺, SMe₂, NMe₃) are examined. The NMR chemical shifts of the methyl C and H atoms are calculated as the CH bond lengths are systematically stretched and contracted, in the absence of a base. The C shielding diminishes by roughly 2 ppm for a stretch of 0.01 Å, while that of H drops by only 0.3 ppm. The deshieldings caused purely by the bond length changes are far too small to account for the …

Water Lab Hosts 2018 Homecoming, Utah Water Research Laboratory

News

The Utah Water Research Lab celebrated an Alumni Homecoming on October 13^th, 2018. Over 200 alumni and current water lab affiliates joined in this celebration, including emeritus faculty and staff, current faculty and students, and their families.

Entry Of A Sphere Into A Water-Surfactant Mixture And The Effect Of A Bubble Layer, Nathan B. Spiers, Mohammad M. Mansoor, Randy Craig Hurd, Saberul I. Sharker, W. G. Robinson, B. J. Williams, Tadd T. Truscott

Mechanical and Aerospace Engineering Faculty Publications

A rigid sphere entering a liquid bath does not always produce an entrained air cavity. Previous experimental work shows that cavity formation, or the lack thereof, is governed by fluid properties, wetting properties of the sphere, and impact velocity. In this study, wetting steel spheres are dropped into a water-surfactant mixture with and without passing through a bubble layer first. Surprisingly, in the case of a water-surfactant mixture without a bubble layer, the critical velocity for cavity formation becomes radius dependent. This occurs due to dynamic surface tension effects, with the local surface tension in the splash increasing during surface …

Design Of An Automatic Defect Identification Method Based Ecpt For Pneumatic Pressure Equipment, Bo Zhang, Yuhua Cheng, Chun Yin, Xuegang Huang, Sara Dadras, Hadi Malek

Electrical and Computer Engineering Faculty Publications

In this paper, in order to achieve automatic defect identification for pneumatic pressure equipment, an improved feature extraction algorithm eddy current pulsed thermography (ECPT) is presented. The presented feature extraction algorithm contains four elements: data block selection; variable step search; relation value classification; and between-class distance decision function. The data block selection and variable step search are integrated to decrease the redundant computations in the automatic defect identification. The goal of the classification and between-class distance calculation is to select the typical features of thermographic sequence. The main image information can be extracted by the method precisely and efficiently. Experimental …

A Novel Shortwave Infrared Proximal Sensing Approach To Quantify The Water Stability Of Soil Aggregates, Azadeh Gholoubi, Hojat Emami, Scott B. Jones, Markus Tuller

Plants, Soils, and Climate Faculty Publications

Soil structure and aggregate stability (AS) are critical soil properties affecting water infiltration, root growth, and resistance to soil and wind erosion. Changes in AS may be early indicators of soil degradation, pointing to low organic matter (OM) content, reduced biological activity, or poor nutrient cycling. Hence, efficient and reliable AS measurement techniques are essential for detection, management, and remediation of degraded soil resources. Here we quantify soil AS by developing a novel proximal sensing technique based on shortwave infrared (SWIR) reflectance measurements. The novel approach is similar to the well-documented high energy moisture characteristic (HEMC) method, which yields a …

Fluted Films, Nathan B. Spiers, Mohammad M. Mansoor, Jesse Belden, Randy Craig Hurd, Zhao Pan, Tadd T. Truscott

Mechanical and Aerospace Engineering Faculty Publications

This paper is associated with a poster winner of a 2017 APS/DFD Milton van Dyke Award for work presented at the DFD Gallery of Fluid Motion. The original poster is available from the Gallery of Fluid Motion, https://doi.org/10.1103/APS.DFD.2017.GFM.P0030

Identifying Usu Energy Loss, Utah Water Research Laboratory

News

AggieAir_TM, a Service Center of the UWRL specializing in the development and use of small unmanned aerial systems for collecting scientific imagery and data, recently worked with USU Facilities to help them identify energy waste on campus.

An Analysis Of Variations In Published Secondary Electron Yield Measurements Of Copper, Phil Lundgreen, Jr Dennison

Posters

No abstract provided.

Optical Transmission Of Irradiated Optical Filters, Jr Dennison, Ashlan Keeler, Brian Wood, Jonh Mojica Decena

Presentations

No abstract provided.

Characterization Of Electron Yield Suppression With Carbon Nanotube Forest Grown On Silicon Substrates, Brian Wood, Jordan Lee, Justin Christensen, Gregory Wilson, Jr Dennison, T. -C. Shen

Presentations

No abstract provided.

Simulating Microgravity And Space Radiation With A Rotary Cell Culture System (Rccs), Alexandra Nelson, Lori Caldwell, Eryn Hanson, Jr Dennison, Elizabeth Vargis

Presentations

No abstract provided.

Characterization Of Electron Yield Suppression With Carbon Nanotube Forest Grown On Silicon Substrates, Brian Wood, Jordan Lee, Gregory Wilson, Jr Dennison, T. -C. Shen

Presentations

No abstract provided.

Real-Time Video Processing Of Arcing Events To Determine Coincidence, Jr Dennison, Gregory Wilson, Jonh Mojica Decena, Brian Wood

Posters

No abstract provided.